Your exclusion, should you choose to declare one, will remain in effect for this year and any following years unless you declare revocation. One cannot take a foreign tax bonus on any excluded income. Also, your choose to deduct foreign earned income can be revoked. Furthermore, if you claim foreign earned income exclusion, you cannot qualify for earned income credit for that year. For more on this, see a tax professional and see publication 596. Determining tax on the income not excluded involves calculating tax rates that would have calculated if you did not choose the exclusion. Most of these can be easily calculated using form 1030 and using the EI Tax Worksheet
., of which you should attach form 6251, Alternative Minimum Tax. http://www.ustaxesbyexpatcpa.com.co/expatriate-tax-return-tax-expat-taxes.php